package com.jomolangma.app.thinkingjava.io;

//: io/TransferTo.java
// Using transferTo() between channels
// {Args: TransferTo.java TransferTo.txt}
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.nio.channels.FileChannel;

public class TransferTo {
	@SuppressWarnings("resource")
	public static void main(String[] args) throws Exception {
		if (args.length != 2) {
			System.out.println("arguments: sourcefile destfile");
			System.exit(1);
		}
		FileChannel in = new FileInputStream(args[0]).getChannel(), 
		out = new FileOutputStream(args[1]).getChannel();
		in.transferTo(0, in.size(), out);
		// Or:
		// out.transferFrom(in, 0, in.size());
	}
} // /:~
